| Abstract: | Nine estimates of US coal resources have been published in the past 71yr. Although many details of these estimates differ markedly, those for 1913, 1922, and 1974 are surprisingly similar. Some differences are due to increased data, others reflect changes in terminology, definitions, criteria, guidelines, and methodologies. Thus many early estimates are not particularly useful in modern resource assessments. Preliminary definitions that are being prepared in 1980 by the US Geological Survey are compared with those published in 1976 and currently in use. Anticipated results of the new definitions are: 1) to lessen existing confusion about estimation procedures; 2) to make such procedures easier and more precise; 3) to promote use of a commonly accepted terminology accompanied by standardized definitions, criteria, guidelines, and methodologies for estimating resources. -Author |
| Genre: | Article |
| ProdID: | 70011900 |
| Citation Author: | Wood, Jr, G. H. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 528 |
| Citation Issue: | 8 pt 1 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Geological Society of America Bulletin |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 9 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Historical review of and current progress in coal-resource estimation in the United States.; 1981; Article; Journal; Geological Society of America Bulletin; Wood, Jr, G. H. |
| Citation Start Page: | 520 |
| Citation Volume: | 92 |
| Citation Year: | 1981 |
| Type: | citation/reference |
| Text: | Historical review of and current progress in coal-resource estimation in the United States.; 1981; Article; Journal; Geological Society of America Bulletin; Wood, Jr, G. H. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1981 00:00 -0600 |
| Publisher: | |
